Question

Magnesium burns brightly in the presence of oxygen. When magnesium reacts with oxygen, they produce?

1) Magnesium oxide
2) Magnesium hydroxide
3) Magnesium chloride
4) Magnesium carbonate

Answer 1

Magnesium reacts with oxygen to produce magnesium oxide (MgO).

Step-by-step explanation:

When magnesium reacts with oxygen, it produces magnesium oxide (MgO). The reaction can be represented by the equation:

1. 2Mg (s) + O₂(g) → 2MgO (s)

During this reaction, the shiny metallic magnesium burns in the presence of oxygen to form a crumbly white powder of magnesium oxide.